Adjustable caster.



11.11. BofLLINGER.

` ADJUSTABLE GSTER. ABLIOATION FILED 111111.?, 191,1. RBHEWBD Nov.' 13,1911.

1,027,686. Patented May 28, 1912.

'.proceeds, the invention consists of certain reference is to behad tothe following 'which in the present instance is plate being HARRISON n.nomineren, or `eiiitui'r FALLS,

ADJUSTABLE cas'riia.

Specification of Letters'l'atent.

No. 612,853. Renewed November 13, i911.v Serial No. 660,117.

Application led March 7, 1911, Serial To all whom 'it may Be it knownthat GER, a citizen of the at Great Falls, in thegcounty of Cascade anState of Montana, have invented certain new and useful Improvements inAdjustable Casters, of which the following is a speciication. p

This invention comprehends certainfnew and useful improvements incasters for the legs of tables and other articles of furniture. and theinvention has for its primary object a simple, durable and efficientconstruction of caster of the adjustable type, whereby' the caster maybe released whenever desired from its normal operative position so as topermit the legs of the table or the like to rest solidly on the, floor,and whereby the caster shank may be securely held upright in its normaloperative position vwhen it is desired to roll the article of furniturefrom one place to another. And the invention also has for its object togenerally improve this class of devices and to render them more usefuland commercially desirable.

VVit-lfi'l these and other objectsjn view, as will more fully appear asthe description.-

coacern: y

I, H Aimisorr D. Bonnin- United States, residing constructions,arrangements and combinations of the parts that I shall hereinafterfully describe and claim.

.A For a full understanding of the inventipn,

accompanying drawing, in

scription and which:

' Figure 1 is a view illustrating one appli cation Vof my invention, thedevice being shown as applied to a table which is illus-4 trated insideelevation; Fig. 2 is avertical longitudinal sectional view of one ofthe casters, the parts being shown partly in section; and Fig. 3 is aperspective view illus- Gorresponding and like parts are referred to inthe following description and indicated in all the views of theaccompanying draw` ing by the same reference characters.

Referring to the drawing, the numeral l designates the leg of an articleof furniture a table, selected for the purposes of .illustration only. Aslotted plate 2. is secured, by screws or to. one side of the of thelatter, said sides of its similar fastening devices leg 1, near thelower end I formed on opposite Yverticall in the casing `3, whereuponthe shank 5 may PATENT orricii.

MONTANA.

Patented. May 28,1912.

slotavit'h bearing ears, in which oppositely proJecting'trunnions aremounted to turn. rflic trunnions 4 are `formed on one 'end' of d a shank5, and to the otligtnd of said slank a swiveled roller, ofany desired'type or character, is connected. I

A casing. 7 is secured'in any desired way to the side of the leg. labove the plate 2, and a locking bolt 8 is mounted to move 7 so as to beengaged with an disengaged from the outerside of the shanlrV 5, asrequired.' The inner edge formed with a lon- A of the locking bolt 8' isglitudinal groove 9 the' walls of which are esigned to fit overandfpartially around the shank 5 so that when its operative position,the locking b'olt will not-only hold the shank securely against the sideof the leg, but will prevent it from skewing or moving laterally 1in a`plane parallel to the plane of said side, therebyv relieving thetrunnions 4 3 from undue strain.

In'the present embodiment of the invention, a locking bolt at one sideof vthe table or other article of furniture is secured to acorresponding opposite means'of a chain l0 or similar flexible connection, the chain passing through screw eyes 11 secured to the sides ofthe legs and over pulleys or rollers l2 secured to convenient port-ionsof the table ory the like, whereby two locking bolts may besimultaneously i raised by merely pressing down upon an intermediateportion of the chain which connects them. Freferablyrtlie locking bolt 8is formed at its upper end with a laterally projecting head 8, easilyengaged by the hand or toe so as to raise the locking'bolt in this way.

From the foregoing description in connection with the accompanyingdrawing, the operation of iny improved adjustable caster will `beapparent. In the practical use. of the device, the pivotally mountedshank 5 of the caster is normally held securely against lthe side of theleg to which it is conl nected, by the engageinentof the longitudinallygrooved locking over and partially around the shank. WhenL ever it' isdesired to lower the leg so that it may rest stationary it is onlynecessary to raise and bearing ears the locking bolt easily swing outand assume an inclined position relative the caster is inl locking boltby which 4may be blt8 l' ddownov Sippe and solidly on the iioor,

It is evident that'the device may lie in'iidel very cheaply and that itis composed ofcomparat-ively fewparts that maybe readilyassembled andthat will be durablerand not eye il serves liable to get` out of order.'

It is obvious that in addition to its function as a guide for theielhain10, the screiT as a stop to limit the upward movement of the lockingbolt. Y n What I claim is:` 1. The combination 'with -an article offurniture provided'with a leg, of a caster embodying a shank ivotallconnected to the leg, and a locking olt sli ingly mounted upon the legand arranged to extend down over .the .shank to-hold the latter rigidly'against .the adjoinin sideo the leg.

2. A. easter of t e character described,

comprising a plate vformed withears, a lShank formed with trunnionsj-ournnled in said ears, a easing, ed Afor a longitudinal movement insaid casing and designed to extend over the shank, the bolt being formedon its innell edge with a longitudinal groove designed to extendpartially around the shank.

3. An adjustable caster'Y comprising n. shank formed with trunnions, aslotted plate formed on opposite sides of its slot with bearin ears 1nwhich the trunnions are joulna ed, a casing adapted to extend overshank, and a locking bolt movable longitudinally in said casing.

In testimony whereof, I affix in presence of two witnesses.

HARRISON D. BOLLINGEH.. U.. 3.] Witnesses: y. Y

JACOB SPENGLER, EARNEST F. MILLER.'

my signature anda locking bolt mount-

